Agilent Technologies 35670A Service And Operator's Guide

42 Agilent 35670A Supplement
4 Service Guide
Reset logic all references to S2 are changed to S5 and there is a
new block diagram.
IIC (Inter_IC) controller the bullet referring to A8 memory is
replaced:
• A17 CPU (Real time clock, EEPROM)
Disk Controller Disregard the final sentence referring to
reversed operation.
Frame Memory Consists of four SRAM chips.
Figure 21 Reset logic
To battery-backed SRAM control circuit
RESET
+5V
RSTn
Buffer
+5V
P8(S)
Reset
RSTn
HALTn
MPU
Reset
Generator
RESET
RESETn
+5V
S5
PVALID
(from power supply)
RUN
(GREEN)
To Disk I/F
TO IIC Controller
To A11 Keyboard Controller
To Disk I/F
To Display I/F
To HP-IB Interface
To MFP
To MC56001
To DMA Controller
To A6 Digital
To A5 Analog
DCOM
RESETINn
test point

Agilent Technologies 35670A Specifications

General

Brand	Agilent Technologies
Model	35670A
Category	Measuring Instruments
Language	English